asmjit: cross-compatibility conan v1 & v2

[SpaceIm]

Specify library name and version: lib/1.0

This is also a good place to share with all of us why you are submitting this PR (specially if it is a new addition to ConanCenter): is it a dependency of other libraries you want to package? Are you the author of the library? Thanks!

---

• I've read the guidelines for contributing.
• I've followed the PEP8 style guides for Python code in the recipes.
• I've used the latest Conan client version.
• I've tried at least one configuration locally with the conan-center hook activated.

[SpaceIm]

ERROR: asmjit/cci.20210306: Error in generate() method, line 53
	tc.variables["ASMJIT_BUILD_X86"] = self.settings.os in ["x86", "x86_64"]
	ConanException: Invalid setting 'x86' is not a valid 'settings.os' value.
Possible values are ['AIX', 'Android', 'Arduino', 'Emscripten', 'FreeBSD', 'Linux', 'Macos', 'Neutrino', 'SunOS', 'VxWorks', 'Windows', 'WindowsCE', 'WindowsStore', 'baremetal', 'iOS', 'tvOS', 'watchOS'

Ahah, removing this str() allows to catch nice typo.

[conan-center-bot]

All green in build 2 (d9c54e414ca589068382baa24f94fb858dae92c0):

• asmjit/cci.20220210@:
  All packages built successfully! (All logs)

• asmjit/cci.20210306@:
  All packages built successfully! (All logs)

[github-actions]

Hooks produced the following warnings for commit d9c54e4

asmjit/cci.20220210

post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libasmjit.so' links to system library 'm' but it is not in cpp_info.system_libs.

asmjit/cci.20210306

post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libasmjit.so' links to system library 'm' but it is not in cpp_info.system_libs.